nativy clients and translators are allowed to communicate through the nativy chat during the translation phase plus 2 weeks after the translation has finished.

The chat response of the translator will be automatically posted to your callbacklink (specified by you before in /order POST) with the orderid and message_id as parameters.

API method for posting messages to the chat: /order/{orderid}/chat PUT

API method for receiving messages from the chat: /order/{orderid}/chat GET

This is how the chat looks on nativy.com: